Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September signals a subtle shift in temperature, down from a moderately hot 75.6°F (24.2°C) in August to an agreeable 69.1°F (20.6°C). Deer River witnesses an average low-temperature of 52°F (11.1°C) throughout the month of September.Humidity
In September, the average relative humidity is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.69" (43mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Deer River, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 6:26 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:44 pm EDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Deer River is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, an average UV index of 3 transforms into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September in Deer River?
What is the driest month?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Deer River?
What time are sunrise and sunset in September?
How many hours of sunshine does Deer River have in September?
What is the UV index reading in September?
Average temperature in September
Deer River, NY
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in September: 52°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in September
Deer River, NY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Deer River, NY
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in September
Deer River, NY
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Deer River, NY
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Deer River, NY
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is October (16.8 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in September
Deer River, NY
- Average snowfall in September: 0"
The month with the highest snowfall is December (9.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Deer River, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Deer River, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days in September
Deer River, NY
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in September
Deer River, NY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Deer River, NY
- Average cloud cover in September: 33
The months with the most cloud cover are January and February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Deer River, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Deer River, New York, USA
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